package com.sky.service.impl;

import com.github.pagehelper.Page;
import com.github.pagehelper.PageHelper;
import com.sky.constant.MessageConstant;
import com.sky.constant.StatusConstant;
import com.sky.context.BaseContext;
import com.sky.dto.CategoryDTO;
import com.sky.dto.CategoryPageQueryDTO;
import com.sky.entity.Category;
import com.sky.exception.DeletionNotAllowedException;
import com.sky.mapper.CategoryMapper;
import com.sky.mapper.DishMapper;
import com.sky.mapper.SetmealMapper;
import com.sky.result.PageResult;
import com.sky.service.CategoryService;
import lombok.val;
import org.springframework.beans.BeanUtils;
import org.springframework.beans.factory.annotation.Autowired;
import org.springframework.stereotype.Service;

import java.time.LocalDateTime;
import java.util.List;

@Service
public class CategoryServicelmpl implements CategoryService {

    @Autowired
    private CategoryMapper categoryMapper;
    @Autowired
    private DishMapper dishMapper;
    @Autowired
    private SetmealMapper setmealMapper;

    //根据id查询记录
    @Override
    public Category getById(long id) {
        Category category=categoryMapper.getById(id);
        return category;
    }

    //编辑分类信息
    @Override
    public void update(CategoryDTO categoryDTO) {
        Category category=new Category();
        BeanUtils.copyProperties(categoryDTO,category);
        //category.setUpdateTime(LocalDateTime.now());
        //category.setUpdateUser(BaseContext.getCurrentId());
        categoryMapper.update(category);
    }

    //启用禁用分类
    @Override
    public void startorstop(Integer status, long id) {
        Category category = Category.builder()
                .status(status)
                .id(id)
                //.updateTime(LocalDateTime.now())
                //.updateUser(BaseContext.getCurrentId())
                .build();
        categoryMapper.update(category);
    }

    //分类分页查询

    @Override
    public PageResult page(CategoryPageQueryDTO categoryPageQueryDTO) {
        PageHelper.startPage(categoryPageQueryDTO.getPage(),categoryPageQueryDTO.getPageSize());
        Page<Category> page=categoryMapper.page(categoryPageQueryDTO);
        long total = page.getTotal();
        List<Category> record = page.getResult();
        return new PageResult(total,record);
    }

    //新增分类
    @Override
    public void save(CategoryDTO categoryDTO) {
        Category category=new Category();
        BeanUtils.copyProperties(categoryDTO,category);
        category.setStatus(StatusConstant.DISABLE);
        //category.setUpdateTime(LocalDateTime.now());
        //category.setCreateTime(LocalDateTime.now());
        //category.setUpdateUser(BaseContext.getCurrentId());
        //category.setCreateUser(BaseContext.getCurrentId());
        categoryMapper.save(category);
    }

    //根据id删除分类信息

    @Override
    public void deleteById(long id) {
        Integer count=dishMapper.countByCategoryId(id);
        if(count>0){
            throw new DeletionNotAllowedException(MessageConstant.CATEGORY_BE_RELATED_BY_DISH);
        }
        count=setmealMapper.countByCategoryId(id);
        if(count>0){
            throw new DeletionNotAllowedException(MessageConstant.CATEGORY_BE_RELATED_BY_SETMEAL);
        }
        categoryMapper.deleteById(id);
    }

    //根据类型查询分类

    @Override
    public List<Category> list(Integer type) {
        List<Category> list=categoryMapper.list(type);
        return list;
    }

    //查询分类表数据
    @Override
    public List<Category> listAll() {
        List<Category> list=categoryMapper.listAll();
        return list;
    }
}
